List of top Chemistry Questions asked in VITEEE

Which element has more electron gain enthalpy among chalcogen group?

Which of the following shows Frenkel's defect?

Which of the following lanthanides are in tv screen.

Write down the structure of picric acid

What is Acrolein?

\({A->[K_2Cr_2O_7][dil.H_2SO_4]B->[CH_3MgI][H_2O]CH3}\) the reactant A is

Deep sea divers used to respirate a mixture of

Copper sulphate solution reacts with $KCN$ to give

Bragg's law is given by the which of the following equation?

In a hydrogen - oxygen fuel cell, combustion of hydrogen occurs to :

At low pressure, the van der Waal's equation is reduced to

The value of \(K_c\) for the reaction : \({A + 3B\rightleftharpoons2C}\) at \(400^\circ C\) is \(0.5.\) Calculate the value of \(K_P\)

When acetylene is passed into methanol at $160- 200�C$ in the presence of a small amount of potassium methoxide under pressure, the following is formed -

The electrode potentials for ${Cu^{2+}(aq)+e^-->Cu^+(aq)}$ and ${Cu^{+}(aq)+e^-->Cu(s)}$ are $+ 0.15\, V$ and $+ 0.50 \,V$, respectively. The value of $E^?_{Cu^{2+}/Cu}$ will be :

For the reaction $N_{2}+3H_{2} \rightarrow 2NH_{3}$ if $\frac{\Delta\left[NH_{3}\right]}{\Delta t}=2\times10^{-4}\,mol\,l^{-1}s^{-1},$ then value of $\frac{-\Delta\left[H_{2}\right]}{\Delta t}$ would be

Glucose when heated with $CH_3OH$ in presence of dry $HCl$ gas gives $\alpha$- and $\beta$-methyl glucosides because it contains:

Compound 'A' of molecular formula $C_4H_{10}O$ on treatment with Lucas reagent at room temperature gives compound ?B\ When compound ?B? is heated with alcoholic $KOH$, it gives isobutene. Compound ?A? and ?B? are respectively

In the extraction of Cu, the metal is formed in the bessemer converter due to the reaction:

Ionisation energy of $He^+$ is $19.6 \times 10^{-18}\, J$ atom$^{-1}$. The energy of the first stationary state $(n= 1)$ of $Li^{2+}$ is

In Williamson synthesis if tertiary alkyl halide is used than

In case of nitrogen, $NCl_3$ is possible but not $NCl_5$ while in case of phosphorus, $PCl_3$ as well as $PCl_5$ are possible. It is due to

In a compound, atoms of element Y form ccp lattice and those of element X occupy $2/3^{rd}$ of tetrahedral voids. The formula of the compound will be

An element occuring in the bcc structure has $12.08 \times 10^{23}$ unit cells. The total number of atoms of the element in these cells will be